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Jun 14, 2016 Create License key, Activation Key, Serial Key Maker, Generate Product Key, Validate a software License Key in C#.NET. The C# Basics beginner course is a free C# Tutorial Series that helps.

Serial Key Generation and Validation. Ask Question. I'd like to make a universal check so that my validation code will accept any key generated by this. This article contains some of the most frequently asked questions about the Microsoft Office Activation Wizard.This article only pertains to Retail versions of Office 2010 suite or program. Note Activation is now required for Office 2010 Volume License suites and programs. For further information on. Jan 03, 2018  New link updated: Make sure you turn off any Antivirus Software first, some cause Keygen crashed Playerunknown's Battlegrounds Key Generator is awesome tool for you to get free key. Jul 31, 2012 Have you ever needed to generate a MachineKey to use in your application’s configuration file or in machine.config? You may need a MachineKey in several scenarios. One of them is the scenario where you deploy your application in a web farm. One another scenario is to need to encrypt Forms Authentication tickets. You have some. A validation key is a random string which is generated for a specific domain and product, you can use it to validate the intended product on that domain and all its sub domains. (the sub domain rule is new since November 2018). When the user buys your software, generate a unique GUID for the license. Let's call this the license key. When the user installs the software, you take your unique hardware key, concatenate that with the license key, and hash the result. The hash you generate will be the activation code that you're looking for. Store that value on your server.

Creating and managing keys is an important part of the cryptographic process. Symmetric algorithms require the creation of a key and an initialization vector (IV). The key must be kept secret from anyone who should not decrypt your data. The IV does not have to be secret, but should be changed for each session. Asymmetric algorithms require the creation of a public key and a private key. The public key can be made public to anyone, while the private key must known only by the party who will decrypt the data encrypted with the public key. This section describes how to generate and manage keys for both symmetric and asymmetric algorithms.

Symmetric Keys

The symmetric encryption classes supplied by the .NET Framework require a key and a new initialization vector (IV) to encrypt and decrypt data. Whenever you create a new instance of one of the managed symmetric cryptographic classes using the parameterless constructor, a new key and IV are automatically created. Anyone that you allow to decrypt your data must possess the same key and IV and use the same algorithm. Generally, a new key and IV should be created for every session, and neither the key nor IV should be stored for use in a later session.

To communicate a symmetric key and IV to a remote party, you would usually encrypt the symmetric key by using asymmetric encryption. Sending the key across an insecure network without encrypting it is unsafe, because anyone who intercepts the key and IV can then decrypt your data. For more information about exchanging data by using encryption, see Creating a Cryptographic Scheme.

The following example shows the creation of a new instance of the TripleDESCryptoServiceProvider class that implements the TripleDES algorithm.

When the previous code is executed, a new key and IV are generated and placed in the Key and IV properties, respectively.

Sometimes you might need to generate multiple keys. In this situation, you can create a new instance of a class that implements a symmetric algorithm and then create a new key and IV by calling the GenerateKey and GenerateIV methods. The following code example illustrates how to create new keys and IVs after a new instance of the symmetric cryptographic class has been made.

When the previous code is executed, a key and IV are generated when the new instance of TripleDESCryptoServiceProvider is made. Another key and IV are created when the GenerateKey and GenerateIV methods are called.

Asymmetric Keys

The .NET Framework provides the RSACryptoServiceProvider and DSACryptoServiceProvider classes for asymmetric encryption. These classes create a public/private key pair when you use the parameterless constructor to create a new instance. Asymmetric keys can be either stored for use in multiple sessions or generated for one session only. While the public key can be made generally available, the private key should be closely guarded.

A public/private key pair is generated whenever a new instance of an asymmetric algorithm class is created. After a new instance of the class is created, the key information can be extracted using one of two methods:

• The ToXmlString method, which returns an XML representation of the key information.

• The ExportParameters method, which returns an RSAParameters structure that holds the key information.

Both methods accept a Boolean value that indicates whether to return only the public key information or to return both the public-key and the private-key information. An RSACryptoServiceProvider class can be initialized to the value of an RSAParameters structure by using the ImportParameters method.

Asymmetric private keys should never be stored verbatim or in plain text on the local computer. If you need to store a private key, you should use a key container. For more on how to store a private key in a key container, see How to: Store Asymmetric Keys in a Key Container.

The following code example creates a new instance of the RSACryptoServiceProvider class, creating a public/private key pair, and saves the public key information to an RSAParameters structure.

See also

Note

Office 365 ProPlus is being renamed to Microsoft 365 Apps for enterprise. For more information about this change, read this blog post.

Introduction

This article contains some of the most frequently asked questions about the Microsoft Office Activation Wizard.This article only pertains to Retail versions of Office 2010 suite or program.

Note Activation is now required for Office 2010 Volume License suites and programs. For further information on Volume License activation in Office, see Volume activation of Office 2013.

Microsoft Office 2010 and the Microsoft 2007 Office system include an Activation Wizard. To fully use a retail version of an Office 2010 suite or program or an 2007 Office system suite or program, you must activate it. If you do not activate the product after you install it, the Office 2010 programs and the 2007 Office system programs can be started only in reduced-functionality mode. In reduced-functionality mode, Office 2010 programs and 2007 Office system programs function more like viewers. In other words, you cannot save changes to documents or create new documents. Additional functionality may be reduced. No existing Office 2010 files or 2007 Office system files are damaged when a product runs in reduced-functionality mode.

More Information

Q1: What is product activation?

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A1: Microsoft asks that you activate your product to make sure that your installation is performed with a genuine Microsoft product. Product activation is an anti-piracy technology that is designed to make sure that the product is legitimately licensed. When you activate a product, no personal information is sent to Microsoft.

Q2: Who must activate their retail copy of an Office 2010 suite or program?

A2: Product activation is required for all licenses that are purchased through retail distribution. If you purchased a new computer from a computer manufacturer, you may have to activate the Microsoft software that is installed on the computer. However, some computer manufacturers may activate the Microsoft software in the factory.

Q3: How does product activation work?

A3: Product activation checks that the product key has not been used on more personal computers than are permitted by the Microsoft Software License Terms. You can activate your product either over the Internet or by telephone. If you activate a product by telephone, you provide an installation ID code. In return, you receive a confirmation ID number. A Microsoft customer service representative activates the product by telephone. This process takes several minutes. If you want to activate your product over the Internet, the process is performed automatically. The only information that you must provide is the name of your country and your region.

Note If you are activating the Product Trial Program version, you can activate the product only over the Internet.

Q4: How do I activate my product?

A4: You can access the Office 2010 Activation Wizard in two ways:

• The Office 2010 Activation Wizard appears when you start an Office program that has not been activated.
• On the File menu, click Help, and look for the section under the Microsoft Office logo. If 'Product is not activated' text appears, click Change.

You can access the 2007 Office system Activation Wizard in two ways:

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• The 2007 Office system Activation Wizard appears when you start an Office program that has not been activated.
• Click the Microsoft Office Button, click Program_Name Options, clickResources, and then click Activate.

Q5: What happens during product activation?

A5: During product activation, the Office Activation Wizard creates a hardware identification that represents the configuration of your computer at the time of activation. This hardware identification is not unique. It does not include any personal information, any information about software or data that may reside on your computer, or any information about the specific make or model of your computer. The hardware identification identifies only the computer. Additionally, the computer identification is used only for activation.

During product activation, you may also provide your personal contact information if you want to register the product with Microsoft.

The Office Activation Wizard can detect and tolerate changes to the configuration of your computer. Minor hardware upgrades do not require reactivation, but if you make major changes to the computer over time, you may have to reactivate the product.

Q6: How does product activation protect customer privacy?

A6: Microsoft highly values respecting and protecting customers' private information. If you do not register the product, none of the information that is collected during product activation will be used to personally identify you.

To view the Microsoft privacy policy, use one of the following methods.

Office 2010 programs

1. Start the Office 2010 program.

2. On the File menu, click Help.

3. Under the Tools for Working with Office heading, click Options.

4. In the navigation pane, click Trust Center.

5. Click the 'Show the Microsoft programprivacy statement' link.

In Access 2007, Excel 2007, PowerPoint 2007, and Word 2007

1. Start the 2007 Office system program.

2. Click the Microsoft Office Button, and then click Program_Name Options.

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3. Click Trust Center in the navigation pane, and then click one of the following:

   • Show the Microsoft Application privacy statement
   • Microsoft Office Online privacy statement

All other 2007 Office system programs

1. Start the 2007 Office system program.

2. On the Tools menu, click Trust Center.

3. Click Privacy Options in the navigation pane, and then click Read our privacy statement.

Q7: Is product activation the same as registration?

A7: No. Product activation differs from product registration. You can voluntarily register your product by providing your name and contact information during product activation. Register the product if you want to receive future communications about product updates, service releases, and special offers.

Q8: How do I know whether my product is activated?

A8: The Office Activation Wizard does not run if you already activated your product. If the product was already activated, you receive the following message when you run the Office Activation Wizard: The product has already been activated.

In Office 2010, you can check the activation status by clicking Help on the File menu. On the right side of the dialog box, under the Microsoft Office logo,you see a message that says 'Product activated' or 'Product requires activation.'

Q9: Does the product stop working if I do not activate it?

A9: No. When the full functionality of the program and the number of program starts are exhausted, the product runs in reduced-functionality mode.

Q10: What is reduced-functionality mode?

A10: In reduced-functionality mode, programs function similarly to viewers. When a program runs in reduced-functionality mode, many commands are unavailable (dimmed). Therefore, you cannot access those functionalities. Some limitations of reduced-functionality mode include the following:

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• You cannot create new documents.
• You can view existing documents, but you cannot edit them.
• You can print documents, but you cannot save them.
  No existing Office files are damaged. Additionally, you can easily stop Office from running in reduced-functionality mode. To do this, follow the instructions on the screens that appear.

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Q11: How do I update information that relates to product activation?

A11: To make sure that the information that you provide to Microsoft in the Office Activation Wizard is correct, you can contact Microsoft any time to review and update the information. In some Office products, you can use the Office Activation Wizard to update your information over the Internet or by telephone. If these options are unavailable to you, you can update or change any information that you provided. To do this, send your product ID and a description of the changes that you want made to the following address:

Microsoft

Attn: Microsoft Product Activation

One Microsoft Way

Redmond, Washington 98052-6399

Microsoft will update your information to reflect any changes that you want made. You must provide your product ID so that Microsoft can accurately identify your activation record.

Note To find the product ID, click About Program_Name on the Help menu in an Office program. In Access 2007, Excel 2007, PowerPoint 2007, and Word 2007, follow these steps:

1. Click the Office Button, and then click the Program_Name Options button.

2. Click the Resources option in the navigation pane, and then click the About button beside the about Microsoft Office Program_Name 2007 label.

Q12: Why do I receive notifications to activate my product?

A12: If you do not activate an Office product, you receive a reminder to activate your product every time that you start the program.

The reminder helps make sure that you are aware that license activation is required and that you can complete the product activation process before the program enters reduced-functionality mode.

Q13: Is there more than one kind of product license?

A13: Yes, the following license types are available:

• Perpetual
• Subscription
• Product Trial Program

Q14: What is a perpetual license?

A14: A perpetual license lets you use the 2007 Office system programs and the Office 2010 programs as long as you own the product.

Q15: What is a subscription license?

A15: A subscription license lets you use the 2007 Office system programs and Office 2010 programs for a determined time.

Q16: What is a Product Trial Program license?

A16: A Product Trial Program license lets you use the 2007 Office system and Office 2010 on a trial basis for one month.

Q17: How many times can I skip activation?

A17: For Product Trial Program license products, the Office programs run in reduced-functionality mode the first time that the programs start. For perpetual license products, you can skip product activation 25 times. If you do not activate the product in the allocated number of program starts, the 2007 Office system programs and the Office 2010 programs start to run in reduced-functionality mode.

Q18: How many installations can be performed with one license agreement? Can I install the product on my portable computer and on my desktop computer? How many times can I reinstall the product and still be able to activate it?

A18: The goal of product activation is to reduce a form of piracy known as 'casual copying' or 'softlifting.' Casual copying is a form of piracy that is characterized by the sharing of software between people in a way that infringes on the Microsoft Software License Terms. For example, Windows XP is primarily licensed for use on a single computer and cannot be installed on other computers without buying additional licenses. If someone were to obtain a copy of Windows XP and load it on his or her computer, and then share it with a second person who loaded it on his or her computer, they would be guilty of casual copying.

Most licenses allow for software to be re-installed and activated on the same computer an unlimited number of times. To make sure that you are using your license correctly, please see your Microsoft Software License Terms or product use rights for more information on a specific product.

References

For more information about Office Activation, visit the following Microsoft website: